Respuesta :
Answer:
she used square unit instead of cubic units
in calculating the volume of the pyramid she didn't multiply by 1/3
she subtracted the pyramid volume instead of adding it
The answer is she used square units instead of cubic units.
What is a pyramid?
A pyramid is a 3D figure built with a base of a polygon and triangular faces all connected together. A pyramid connects each vertex of the base to a common tip giving it the typical shape.
What is a pyramid shape?
A pyramid is a polyhedron for which the base is a polygon and all lateral faces are triangles.
Learn more about pyramids here https://brainly.com/question/1288463
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